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Patent US3758787A successfully refreshed from Google Patents.
US3758787A
Expired / Lapsed
US
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Apparatus for determining the amount of the dispersed phase in a suspension
Assignee: Individual
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Filing: 1972-03-24
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Granted: 1973-09-11
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Expires: 1992-03-24
Abstract
Abstract The amount of the dispersed phase in a suspension is determined by causing the suspension to flow in a free falling jet, directing a beam of light transversely on the jet, and measuring the light scattered at an angle of about 15* to 40* relative to a plane which includes the optical axis of the incident beam and a straight line perpendicular to that optical axis and to the longitudinal axis of the jet at the point of intersection. The resistance or output of a photoelectric cell receiving the scattered light is indicative of the amount of the suspended phase.
Inventors
- 👤 W Sigrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:53
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N15/00; G01N15/02; G01N15/0205
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
245 words
Apparatus for determining the amount of the dispersed phase in a suspension comprising, in combination: a. nozzle means for discharging said suspension as a jet having a first longitudinal axis; b. a light source; c. first optical means for directing light of said source toward said jet as an incident beam having an optical second axis intersecting said first axis; d. a photoelectric element; e. second optical means for directing light of said beam scattered by said jet on said photoelectric element and for thereby causing said element to generate an electrical signal indicative of the amount of said scattered light, 1. said second optical means having an optical third axis obliquely inclined relative to a reference plane defined by said second axis and a straight line perpendicular to said first and second axes through the point of intersection of said first and second axes, 2. said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element, 1. the axis of the portion of said incident beam linearly transmitted by said jet and said fourth axis defining an angle of 90* to 135*; and h. light trap means spaced from said point of intersection in the direction of said second axis away from said light source for absorbing the light of said source linearly transmitted by set jet.
Claim 2
Dependent Claim
245 words
Apparatus for determining the amount of the dispersed phase in a suspension comprising, in combination: a. nozzle means for discharging said suspension as a jet having a first longitudinal axis; b. a light source; c. first optical means for directing light of said source toward said jet as an incident beam having an optical second axis intersecting said first axis; d. a photoelectric element; e. second optical means for directing light of said beam scattered by said jet on said photoelectric element and for thereby causing said element to generate an electrical signal indicative of the amount of said scattered light, 1. said second optical means having an optical third axis obliquely inclined relative to a reference plane defined by said second axis and a straight line perpendicular to said first and second axes through the point of intersection of said first and second axes, 2. said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element, 1. the axis of the portion of said incident beam linearly transmitted by said jet and said fourth axis defining an angle of 90* to 135*; and h. light trap means spaced from said point of intersection in the direction of said second axis away from said light source for absorbing the light of said source linearly transmitted by set jet.
Claim 3
Dependent Claim
38 words
said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element,
Claim 4
Dependent Claim
38 words
said second optical means being spaced from said plane; f. another photoelectric element; g. third optical means having an optical fourth axis and directing light of said incident beam reflected from said jet toward said other photoelectric element,
Claim 5
Dependent Claim
19 words
Apparatus as set forth in claim 1, wherein said first and second axes are substantially perpendicular to each other.
Claim 6
Dependent Claim
22 words
Apparatus as set forth in claim 1, wherein said first and second axes intersect each other at an angle of approximately 60*.
Claim 7
Dependent Claim
23 words
Apparatus as set forth in claim 1, wherein said third axis diverges from said reference plane at an angle of 15* to 40*.
Claim 8
Dependent Claim
41 words
Apparatus as set forth in claim 1, further comprising circuit means connecting said photoelectric elements and including signal generating means for generating a signal indicative of a function of the difference of the amounts of light respectively received by said elements.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |